9672985689 has 4 divisors (see below), whose sum is σ = 12897314256. Its totient is φ = 6448657124.

The previous prime is 9672985681. The next prime is 9672985691. The reversal of 9672985689 is 9865892769.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9865892769 = 3 ⋅3288630923.

It is a cyclic number.

It is not a de Polignac number, because 9672985689 - 2³ = 9672985681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9672985681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1612164279 + ... + 1612164284.

It is an arithmetic number, because the mean of its divisors is an integer number (3224328564).

Almost surely, 2^9672985689 is an apocalyptic number.

It is an amenable number.

9672985689 is a deficient number, since it is larger than the sum of its proper divisors (3224328567).

9672985689 is a wasteful number, since it uses less digits than its factorization.

9672985689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3224328566.

The product of its digits is 117573120, while the sum is 69.

The square root of 9672985689 is about 98351.3380132675. The cubic root of 9672985689 is about 2130.6895787951.

The spelling of 9672985689 in words is "nine billion, six hundred seventy-two million, nine hundred eighty-five thousand, six hundred eighty-nine".